Door structure for grain bins or the like



Jan. I9, 1932. R7 5. BRANDL DOOR STRUCTURE FOR GRAIN B-INS OR THE LIKE Fi'led May 31. 1950 I k r' Patented Jan. 19, 1932 sAI'n 30131231 s. nnnnnn nncnnsnn noon srnncrortnfrf'onia nson I Application filed May It is my objectto provide. an-improved door structure, particularly,x although not exclusively, adapted for use with metal: grain bins which are tobe locked or sealed against H ,5 unauthorized withdrawal'of the'contentsof the bin. The invention includes certain novel features of constructlon for securing-a simple, strong and weather-tight door.

W In the accompanying drawings, which-i1 io lustrate-the best form of my device 'atpres-e -ent known to me, Figurel is .aperspective view of myimproveddoor togetherswith fragmentary portions of theroof andiwalls of a sheet metal grain bin; Fig. 2 is a fragmen' length and themeinbers 20'are-spacedapart a r dlstance equal to the. length of the door sectionsl'sothatwlleniithe several sections are in iclosed: position; the Ilines [of contact; 21 between them are '7 located, -1behindthe ,frame member2 0,v as;shownin'Eig.'1. j; To close the opening 19 at the upperfend tary, vertical sect-ionthrough the upper portionofthe door structure; F ig.' 3- is afragmentary horizontal section taken "on the line" 3+3 of Fig.2; Fig. 1 is a similar section taken on the'line"44: of Fig. -1;F1g.; 5 is'a fragmentary section taken on the line .5' -5 of Fig. 1 and Fig. 6 is a central'verticalsection through, the grain withdrawal spout and-adj acent portion of the'door,

Theinvention is shownin connection with a cylindrical bin having awall- 7 and; a' conical roof 8 consti'ruchad'from sheet metal and composed of long, ''relatively narrow panels connected together at their side edges. The

door opening extends from top to bottom of the wall 7 between longitudinal framemem. 1 bers 9. Inwardly bent flanges l0 along-the side edges of the members 9'jengage'folded edges 11 on the sheet metal wall 7 andigripping the inner surfaces of the wall? are angle ba'rs12 for securing the folded portions 11 against the flanges under the action of bolts 13. These bolts-are inserted through a as best shown in Figs. 4 and 5, the connections perforations in the members 9-and 12. Guide members 14 for slidable sections15 'and16- of the doorfare secured to theframe members 9,

being preferably made by spot welding. To

retain and'guide, the slidab'le sections; outer flanges 17' and inner flanges ;18 are provided onthe members 14.- -The "channels thus 1 formed extend from top to bottom of the W911 w x p t a the outer-flan es 17 tenminate short of the upper nd fth fl 18 toflform an opening 1 9' into which'thedoor sections 15 and 16 may be inserted into eni930. Js 'riai no; 458,698.

ROBERT B. Bit-Anton 0E sr. mw fmmmsow-rg 1111mm. "iiRAnnt-fitxnonriuit"for gagement with the inner :flanges' 18. These -chann'els bet-weenthe common to Sthe. inner, surfaces of the guide flanges, 17 so that-the members 20 do not interfere. with the free '1 movement of the sections sections gare interchangeable, b in of equal door, sectionsjaremoved downward in the v flangesil7 and 18 to "closedzpositionf: i

. l5; and 16; along their guide channels. lThe of, the'doojr, ap'ivotsection22 isgmounted on horizontal pivot bolts231i(Figs. 2 and3).

Elongated slots 24am formed in the door section 22 to receive the-bolts 23 and permit limited movement of said; section "longitudi- -nally ofthe flanges 18. Asshown in Fig. 1,

a suitable hasp 25 isprovided on the exterior placed in.lockingjengagement with a U- shaped pro ect1on 26 secured totheluppertate the withdrawal of, the'7grai11 into; sacks :o'r otherreceptacles. This spout 28 1normally projects within-thebin asi indicated in full -lines in Fig.6, andhasa smallsliding closure :29 adaptedto be secured: in closedposition byahasp 31; Whenthe grain istobe-with- 1 drawn through-v thespont28 thelatter isfex tendechas indicated'in dotted ,linesin Fig, 6,

and tlieiclosure 29 ismoved to open position.

In use, whenrthe door sectionsare in closedposition the bin "is locked {against unauthor- 7 iZed withdrawal: of the-contents by applying suitable seals and locks to the hasps on the pivoted door section, 22, cover 27 and a closure most membr 20. Anopeningin theroof 8 has a-suitable cover27 which: is removable Y .to permit; filling of the bin 1 when the door, is

closed: and, in one ;ofjthe; door sections, m outlet'spout 28 isslidablyt'mounted to, facili-1 29 of the spout 28. To gain access to the interior of the bin the lock and/or seal on V the hasp is removed and then the section and then removed through the opening 19.

Similarly the sections 16 and 15 may be removed. w 7

To close thedoor,'the abov edescribed operations are reversed, When the sliding sections are 1n closed position the r ends abut,

one against another behind the transverse framemembers 20, as indicated at 21, and themembers 20 make a weather-tight connection between the sections. The continuous metal guide channels imade weather-proof joints along 'theside'edges of the door sections. 'l/Vhen the pivoted section 22 is in closed position it issimilarly :sealed and is retained in the pathof the sections 15 and 16 by'the locking means which prevent upward sliding of said section out of engagement with the frame member 20. All of the door sections are -p'referably of hollow box form with the "flanges forming their side edges extending inward from the main panel constituting the outer door surface.

This gives ample rigidity and strength to-the door; 7

Ha-ving described my invention what I claim-as new and desire to protect by Letters Patent is:

1. In a doorstructurefor grain blns or the -like,fparallel frame members extending along thesides of a'door opening, inner and outer guide members extending along said frame rnembers toreceive slidable door sections between them, said outer guide membersterminating a substantial'distancefrom'the ends of said inner guide mem'bers to form an end opening for the insertion and remova'l of the door sections, shdable door sections-adapted to be moved longitudinallybetween said inner'and outer guide members and to abut, :end to-end, one against another when inclosed position, an end door section extending in the path of said movable sections when in closed position and movable to open position through said end opening and means for "securing said' end doorsection in "the path of said slidable door sections to retain them in closed position.

2. In a door structure for grain bins or the like, parallel frame members extending :along'the sides ofa'door opening, inner and outer guide -members extending along said frame member's to receiveslidable do'orsectionsbetween them, saidouteriguide members terminating a substantial distance from the ends of said inner guide members to form an end opening for the insertion and removal of the door sections, slidable door sections adaptedto be moved longitudinally between said inner and outer guide members and to abut, end to end, one againstanother when in closed position, an end door section movable to open position through said end opening and disposed in end to end abutment with a slidable'section when in closed position, a pivotal support for said end section having a pivotal axis extending transverse said frame members and means for securing said end section in the path of said slidable sections to retain them in closed position.

3. In a'doorstructure for grainbins or the like, longitudinal door frame members mounted in spaced, :parallel relation, transverse frame members connecting said longitudinal members at intervals, inner and outerguide members extending along said longitudinal frame members and forming continuous channels for door sections, an opening being formed in said outer guidemembers-to permit the insertion and removalof door sections, slidable door sections severally spanning the space between. adjacent transverse frame members and adaptedzto be moved longitudinally in said channels to and from closed position, a pivoted door section movable to open position through and disposed in, the path ofsaid slidable sections-when in closed position said opening andmeans for securing said pivoted door section in the pathof said slidable door sections to retain them-in'closed position. 7

4. In a door structure forgrain bins or the :like,. longitudinal door frame members mounted in spaced, parallel relation, trans-- verse frame members-connecting said longitudinal members at intervals, inner and outer guide members extending along said longitudinal frame members and forming continuous channels for door sections, an opening being formed in said outer guide members to permit-theinsertion and removal -ofdoor sections,sl idable doorsections severally spanning the space between adjacent, transverse frame members and adapted to be moved longitudinally in said channels, said *sections abutting, end 'to end, one against another at sald transverse members and the lines of'contact betweensections being covered by said transversemembers when said sections are in closed positions, apivoted door section movable to-open position through said opening and means for securing said pivoted section in the path-of said slidable sections toxretain them in closed position.

i 5. In a door structure for grain binsor the like, longitudinal door frame members :mounted in spaced, parallel relation, transverse frame:membersconnecting said longi- :tudinal members at 1ntervals, 1nner and outer guide members extending along said longitudinal frame members and formingcontinuous channels for door sections, an opening being formed in said outer guide members to permit the insertion and removal of door sections, slidable door sections severally spanning the space between, adjacent, transverse frame members and adapted to be moved longitudinally in said channels, said sections v abutting, end to end, one against another behind said transverse members when in closed positions, a pivoted door section movable to open position through said opening and means for permitting limited movement of said pivoted section longitudinally of said guide members to engage the adj acent,-slidable door 7 section behind one of said transverse frame, members.

In testimony whereof, I have hereunto signedmy name to this specification.

ROBERT B. BRANDL. 

